Biology High School

If an atom like aluminum becomes an ion by losing 3 electrons, what is the
charge on the ion?
1+
2+
3+
3-

Answers

Answer 1
The basis to this Qs. is that electrons are negatively charged, and protons are positively charged. Essentially, the reason for an atom’s neutrality is a balance between the proton(s)/ positive charge(s) and the electron(s)/negative charge(s). So when 3 electrons are lost, we have an extra 3 protons left. As the charge of the proton is positive, your answer is “3+”.

Related Questions

Plz help ASAP thanks!!

Sodium(Na), magnesium (Mg) and sulfur (S) are all in the same_____

A:group
B: Period

They have the same number of____

A:Valence electrons
B:Electrons shells

Answers

Answer:

Sodium, Magnesium, and Sulfer are all in the same period meaning they have the same number of electron shells.

Explanation:

Periods are rows in the periodic table. The number of Valence electrons grows across the period (left to right) until reaching the electron shell's capacity.

Groups occur in columns in the periodic table and all have the same number of valence electrons, and the number of electron shells increase as you move downward on the table

Why is technology not the solution to all scientific problems?

Answers

Answer:

Science can not solve all of our problems. While scientific understanding can help battle things like disease, hunger, and poverty when applied properly, it does not do so completely and automatically. Furthermore, there are many areas of life where science can have little impact.

43, Square root of 40 , Square root of 13 , Square root of 7 , 14 over 9

Answers

Answer:

64

Explanation:

All enzymes are examples of organic molecules known as?

Answers

Answer:

PROTEINS

Explanation:

Many important molecules in the hman  body are proteins like enzymes, antibodies,  e.t.c.

Enzymes are a type of protein that speed up chemical reactions.

All enzymes are examples of organic molecules known as proteins.

Proteins are large biomolecules composed of one or more chains of amino acids that perform a wide range of functions in living organisms. Proteins are essential structural and functional components of cells, tissues, and organs.

Enzymes are biological catalysts that are produced by living cells. They are typically composed of one or more proteins, which are long chains of amino acids that are folded into complex three-dimensional shapes. Enzymes play a critical role in many biological processes, including digestion, metabolism, and DNA replication. \They work by lowering the activation energy required for a given chemical reaction to occur, which allows the reaction to proceed more quickly and efficiently.

Therefore, enzymes are proteins, they are considered to be organic molecules.

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Give one example of how the testing of Platismatia glauca could benefit future ecological research of this forest.

Answers

Answer:

Testing Platismatia glauca could help scientists understand which pollutants have the largest effect on lichen populations. It also may help scientists understand the current pollutant levels in the atmosphere compared to the population of lichens on the trees. This information can help them more accurately predict population changes over time.

hope this helps:)


1.
Mention any four importance of electricity in the present days?
​

Answers

Answer:

lighting, heating, cooling, devices

Explanation:

you have to have electricity for the following or you would not be able to change you phone

It is used for lighting rooms, working fans and domestic appliances like using electric stoves, A/C and more. All these provide comfort to people. In factories, large machines are worked with the help of electricity. Essential items like food, cloth, paper and many other things are the product of electricity.

Compare ionic solids and liquids

Answers

at room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas, whereas ionic compounds exist only as solids. ionic compounds exist in stable crystalline structures. therefore, they have higher melting and boiling points compared to covalent compounds.
Where as ionic Compounds exist in a stable Crystalline structures therefore they have higher melting and boiling points compared to COVALENT Compounds

Which one of these is not a volcanic island arc? (Consult a plate tectonic map if needed) Group of answer choices Hawaiian Islands Japan Indonesia Aleutian Islands

Answers

Answer:

Hawaiian Islands

Explanation:

A volcanic arc is made of volcanoes and is formed above the subducting plate and examples include the marina island in the pacific ocean and lesser Antilles. Sundra arc is a volcanic arc and the Hawaii islands are an example of the linear chain of volcanoes.

-identify the independent variable/dependent variable.

which plants grew taller:those in the experimental group or those in the control group?

-Describe why this is a controlled experiment.
​

Answers

Explanation:

a control group does not. They should be identical in all other ways.

Match the level of ecological organization described by each of the statement below. The birds,insects,plants,fungi, and other organisms that reside in a nearby wetland

Answers

Answer:

Community

Explanation:

The community is the compilation of the different plant and animal species population in a designated area  at a particular time that interact with each other. The different species in a community have interactions with one another based on trophic levels and the supply and provision of nutrition for survival

The ecological level above the community level is the ecosystem, which is concerned with the biotic and abiotic interactions

Beloe the community level is the population, which are the number of a particular species in a location at a given point in time.

At birth, what is the average number of red blood cells per
mm of blood?

Answers

Baby girls are 4.1mm
Baby boys a 3mm
5.1 million cells per cubic millimeter

7. Mrs. Everhart developed the theory that all bulldogs are great pets. After all her bulldog Meatball is a
wonderful dog! Is this statement a scientific theory? Why or why not.
finoccientific method

Answers

Answer:

No it is not a scientific theory.

Explanation:

An explanation of any aspect of the natural phenomenon of the world that can be tested several times and well supported by the evidence, and follows the scientific method. Furthermore known as scientific theory.

Presently, a logical hypothesis must meet a few rules, and one of those is that it must be upheld by a few (and free) strands of proof.  

For this situation, we have just one hypothesis, that bulldogs are great pet and Meatball is great among bulldogs, and it isn't sufficient, at that point it can not be a scientific theory.

what do foxes sleep on? A.beds B.fox nest C.trampling

Answers

Answer: B. Fox nests

Explanation:

Foxes dig out dens to provide a safe underground space that is mostly used for raising fox cubs, also called kits. In urban areas, the dens - known as earths - are commonly located under sheds, but they can also be among tree roots, in bushes or on railway embankments.

what is photosynthesis​

Answers

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities.
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water –

Question 2 of 10
Methane gas is burned to provide heat. The chemical reaction for this
process is shown in the equation below.
CH4 + 202 -> CO2 + 2H20 + energy
What are the products in this chemical reaction?
A. O2 + CO2 + energy
B. CO2 + CH4
C. CO2 + 2H20 + energy
D. CH4 + 202
9

Answers

Explanation:

The chemical reaction is represented by a chemical equation where we use some basic elements like:

Reactants are kept on the left hand side.Products are kept on the right hand side.They are divided by a arrow which hear towards the products.

This shows that reactants are forming or giving rise to different products in the reaction.

Back to the Question:

Here a chemical reaction is taking olace, where methane is being burnt in the presence of oxygen to form the products Carbon dioxide, water and energy.

Methane + Oxygen ➝ Carbon dioxide + water + energy.

So, the arrow head is towards the CO2, H2O and energy, so they are products according to the above explanation.

Correct option is:

[tex] \large{ \boxed{ \bf{ \purple{Option \: C}}}}[/tex]

And we are done !!

#CarryOnLearning....

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is auxin one of the most important group of plant hormones​

Answers

Answer:

yes they are

Explanation:

because auxin are the most important hormones involved in adventitious root formation.

Answer:

Yes!

Explanation:

Auxin is one of the MOST important group of plant hormones! They promote the growth that is needed for plants. They produce the stems and the buds, and the tips of the roots for the plants. Without it, things would go bad, and a lot of things would go awry.

I really hope I helped you with this question!

List the characteristic features of epidermal cells.

Answers

Answer:

Epidermal cells are tightly linked to each other and provide mechanical strength and protection to the plant. The walls of the epidermal cells of the above ground parts of plants contain cutin, and are covered with a cuticle.

Which statement best explains a way in which a cell gets rid of wastes?
A. The nucleus provides the instructions for making proteins from
amino acids.
B. A chloroplast converts energy from sunlight into organic matter.
C. Mitochondria change energy stored in organic compounds into a
usable form.
D. Vacuoles merge with the cell membrane and then open.

Answers

Answer

D. Vacuoles merge with the cell membrane and then open.

Explanation:

Answer:

D

Explanation:

I took the ∆pex quiz

TOR kinases are enzymatic proteins found in a diversity of species, from yeasts to mammals. They serve in a phosphorylation cascade that promotes progression through the cell cycle. What evidence would confirm that eukaryotes share a common ancestor with regards to cell signaling pathways?

Answers

Answer:

By phylogenetic analyses  

Explanation:

The target of rapamycin (TOR) is a major regulator of growth only found in eukaryotic organisms. The TOR pathway is known to regulate critical cellular processes including, among others, cell growth. The TOR protein is a kinase capable of activating translation by phosphorylation of the ribosomal S6 kinase (S6K) and the eukaryotic translation initiation factor 4E binding protein (4E-BP). In this regard, phylogenetic studies have shown that this pathway involves duplication events of ancestral kinases, as well as sub-functionalization of the S6K kinase.

As latitude increases,___.
temperature increases
O temperature decreases
biomes increase in size
biomes decrease in size

Answers

Answer:

As latitude increases the temperature decreases

Scientific laws and theories are both based on observations and evidence how are they different?

Answers

Answer:

theory explain why something happens and laws explain what happen

Explanation:

you can remember this because in the word theory there is the letter "y" so you can remember that theories explain "y"/ why

Laws explain what happen and you can remember it bc the last letter in law is w so you can remember w is what

Answer: a theory can change into a law, but a law can't change into a theaory

Explanation:

Somatic cells (also called body cells) are found where? Check all that apply.
A heart
B lungs
C sperm
D muscles
E eggs

Answers

Answer:
Heart , lungs , and muscles





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Choose all of the physical changes:

(There are FOUR)



Group of answer choices

tarnish

evaporate

bend

react

melt

explode

dissolve

Answers

Answer:

evaporate, bend, melt, dissolve

Explanation:

Using radio telescopes, astronomers have found evidence
that no new matter is forming in the universe, which is
what the big bang theory predicted.
This work is part of which process used in developing scientific theories?
A. Using new technology to provide additional supporting data
B. Using imagination to spark new ideas
C. Using new technology to replace outdated theories with new ideas
O D. Using new data to modify an existing scientific theory

Answers

Answer:

A

Explanation:

Scientific theories are explanations of natural phenomena that have been repeatedly examined and verified using the scientific process of observation, measurement, and analysis. Therefore, option (A) is correct.

What is scientific theory?

A scientific theory is an explanation of an aspect of the natural world and the universe that has been repeatedly tested and corroborated in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of the results. In other words, a scientific theory is an explanation of something that has been proven to be true through the scientific method.

Einstein's Special Relativity, which describes the relationship between space and time for objects moving at a consistent speed in a straight line, is one of the most well-known scientific ideas. It also happens to be one of the most controversial. Additionally, the concept of time dilation is investigated by this theory.

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When members of populations do not mate with each other or cannot produce fertile offspring, they are

Answers

Jorge hailey manny Harley

Identify the chemical change below

A.a piece of wood burns in a fire
B.two pieces of paper are stapled together
C.a large log is cut into boards
D.water is removed by drying wet clothes on a laundry line

Answers

A peice of wood burns in a fire is the answer

the search for crude oil is known as​

Answers

Answer: answer below.

Explanation: Research for crude oil is also known as Petroleum.

Which element is found in nucleic acids but not in amino acids

Answers

Answer:

Phosphorus

Explanation:

Answer:

Phosphorus

Explanation:

I took the quiz

explain why a large tree and a crop such as rice or maiz are both classified as plant​

Answers

Answer:

because the all need sun, and oxygen, water to grow. I really don't know how to answer so I hope the answer above help sorry if it doesn't

Explanation:

Answer:

they both produce their own food

Explanation:

photosynthesis is a large part of their life

The term used to define a cell that has a nucleus containing DNA.
a) Autotroph
b)Prokaryote
c) Eukaryote
d) Homeostasis ​

Answers

Answer:

The answer would be C eukaryote the cell that has a nucleus containing DNA I can't show a picture of it but I can tell you for sure that is that answer

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